We recently found this issue as well. We didn't notice it for the longest time because most people here in the office updated their firmware. This issue is specific to firmware versions that are lower than 4.0. A quick workaround for this is to upgrade your firmware.
Sorry for the inconvenience, this is one of the bugs we should have caught (but didn't)

Well, I did do the upgrade on my machine (eg; linux). So it's a tad bit different from windows, but it shouldn't be that different.
The profiles are in the quality_changes folder. The file I sent you has a number of those there.

Oh! Sorry, I missed this topic.
On linux Cura has 2 locations where the files are placed
So if you want them for 3.6, the config files need to be in ~/.local/share/cura/3.6/
The cura.cfg (preferences) and the plugin.json need to be located in ~/.config/cura/3.6

Display wise, Cura always assumes that the center of the build plate is the (0,0) origin (So; if you use the move tool, that's the location where it's moving from!)
The machine_center_is_zero basically defines if this assumption is true. For most printers, this is not the case, since they tend to use the lower left corner for the 0,0.
That being said; What you want isn't possible without code changes.